# Foreground Mask

Initiates an asynchronous foreground mask generation job for a video.

Response behavior:
- Returns HTTP 202 with request_id and status_url
- Check job status by polling status_url or by calling the Status Service with the request_id until a terminal status is returned

Supported input containers:
- .mp4, .mov, .webm, .avi, .gif

Supported input codecs:
- H.264, H.265 (HEVC), VP9, AV1, PhotoJPEG

Input attributes preserved in output:
- Aspect Ratio and resolution
- Frame Rate
- Audio if present

Limits:
- Max input duration: 60 seconds
- Resolutions: Input resolution up to 16000x16000 (16K). Inputs larger than this return 413 Payload Too Large. Output resolution matches the input resolution.

Endpoint: POST /foreground_mask

## Header parameters:

  - `api_token` (string, required)

## Request fields (application/json):

  - `video` (string, required)
    Publicly accessible URL of the input video. Input resolution supported up to 16000x16000 (16K)

  - `output_container_and_codec` (string)
    Output container and codec preset
    Enum: "mp4_h264", "mp4_h265", "webm_vp9", "mov_h265", "mov_proresks", "mkv_h264", "mkv_h265", "mkv_vp9", "gif"

## Response 202 fields (application/json):

  - `request_id` (string, required)

  - `status_url` (string, required)

## Response 400 fields (application/json):

  - `error` (object, required)

  - `error.code` (integer, required)
    Example: 123

  - `error.message` (string, required)

  - `error.details` (string, required)

  - `request_id` (string, required)

## Response 403 fields (application/json):

  - `error` (object, required)

  - `error.code` (integer, required)
    Example: 123

  - `error.message` (string, required)

  - `error.details` (string, required)

  - `request_id` (string, required)

## Response 405 fields (application/json):

  - `error` (object, required)

  - `error.code` (integer, required)
    Example: 123

  - `error.message` (string, required)

  - `error.details` (string, required)

  - `request_id` (string, required)

## Response 413 fields (application/json):

  - `error` (object, required)

  - `error.code` (integer, required)
    Example: 123

  - `error.message` (string, required)

  - `error.details` (string, required)

  - `request_id` (string, required)

## Response 415 fields (application/json):

  - `error` (object, required)

  - `error.code` (integer, required)
    Example: 123

  - `error.message` (string, required)

  - `error.details` (string, required)

  - `request_id` (string, required)

## Response 422 fields (application/json):

  - `error` (object, required)

  - `error.code` (integer, required)
    Example: 123

  - `error.message` (string, required)

  - `error.details` (string, required)

  - `request_id` (string, required)

## Response 429 fields (application/json):

  - `error` (object, required)

  - `error.code` (integer, required)
    Example: 123

  - `error.message` (string, required)

  - `error.details` (string, required)

  - `request_id` (string, required)

## Response 500 fields (application/json):

  - `error` (object, required)

  - `error.code` (integer, required)
    Example: 123

  - `error.message` (string, required)

  - `error.details` (string, required)

  - `request_id` (string, required)